Mexican authorities found seven corpses in two abandoned cars along with written messages referring to drug cartels, AP quoted state police as saying. The bullet-riddled bodies of three men were inside a car left beside the highway between the resort communities of Acapulco and Zihuatanejo on Wednesday morning, police in the Pacific coast state of Guerrero said. Police did not release the message left with the bodies, but said it referred to drug cartels. Late Tuesday night, state police found the bodies of four young men in an abandoned car near a hotel in Guerrero's capital, Chilpancingo. A police report said the men appeared to have been asphyxiated by plastic tape covering their faces. A written message left on the windshield accused them of betraying the brothers who lead the Beltran Leyva cartel, police said Wednesday.